English 
简体中文 
한국어 
にほんご 
After-sales service
Service
We promise customers a quality guarantee period of more than 90 days. During this period, if customer has doubt about the quality of any products we sell, please be sure to follow our RMA return process to ensure that we can provide you with the most timely solution.
Please read and follow the terms below when you need to return or replace the product during the cooperation:
Conditions for acceptance of aftre-sales service
1. Customers who need to return or replace goods due to the wrong quantity of goods received, different Parts or product quality problems can apply for returning or replacing goods within two weeks after receiving the goods, and the delay will not be accepted.2. For returning and replacing products, please keep the complete original packaging (including outer and inner packing) and ensure the goods label is in good condition. The goods label is the only proof for Suntop to coordinate with the supplier to return and replace the goods. If it is lost, it will not be refundable.
3. In case of product quality problem, customer shall provide a detailed performance test report in English as the basis for negotiation between M-STAR and the supplier.If necessary, a third-party English test report approved by both parties shall be provided.
4. Order invoices shall be returned to us after the application for return and replacement is approved.
After-sales service is not accepted as follows
1. The original package and label of the product are damaged or missing.2. Products that have been used/tested on the machine.
3. Customer's own reasons for the wrong order.
